Results 21 to 30 of about 151,242 (304)

Inhibition by small-molecule ligands of formation of amyloid fibrils of an immunoglobulin light chain variable domain. [PDF]

open access: yes, 2015
Overproduction of immunoglobulin light chains leads to systemic amyloidosis, a lethal disease characterized by the formation of amyloid fibrils in patients' tissues. Excess light chains are in equilibrium between dimers and less stable monomers which can
Brumshtein, Boris   +7 more
core   +1 more source

Cholesterol nucleation time in gallbladder bile of patients with solitary or multiple cholesterol gallstones [PDF]

open access: yes, 1992
Patients with multiple cholesterol gallbladder stones have been found to be at a higher risk for the recurrence of gallstones after successful nonsurgical treatment than those with a solitary stone.
Abell   +27 more
core   +1 more source

Quantitative proteomic analysis of extracellular vesicle subgroups isolated by an optimized method combining polymer‐based precipitation and size exclusion chromatography

open access: yesJournal of Extracellular Vesicles, 2021
The molecular characterization of extracellular vesicles (EVs) has revealed a great heterogeneity in their composition at a cellular and tissue level.
Juan A. Martínez‐Greene   +10 more
doaj   +1 more source

1Progress, applications, challenges and prospects of protein purification technology

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
Protein is one of the most important biological macromolecules in life, which plays a vital role in cell growth, development, movement, heredity, reproduction and other life activities.
Miao Du   +9 more
doaj   +1 more source

Optimization of Methods for Determination of the Encapsulation Efficiency of Doxorubicin in the Nanoparticles Based on Poly(lactic-co-glycolic acid) (PLGA)

open access: yesРазработка и регистрация лекарственных средств, 2020
Introduction. Drug encapsulation efficiency (EE) is the important parameter of the nanoparticle-based drug formulations. Generally, the methods for evaluation of the EE are based on separation of the free and NP-bound fractions of the drug; however ...
T. S. Kovshova   +6 more
doaj   +1 more source

Crystallization of Adenylylsulfate Reductase from Desulfovibrio gigas: A Strategy Based on Controlled Protein Oligomerization [PDF]

open access: yes, 2011
Adenylylsulfate reductase (adenosine 5′-phosphosulfate reductase, APS reductase or APSR, E.C.1.8.99.2) catalyzes the conversion of APS to sulfite in dissimilatory sulfate reduction. APSR was isolated and purified directly from massive anaerobically grown
Chan, Sunney I.   +9 more
core   +1 more source

The effect of cerebrospinal fluid-derived exosomes on neural differentiation of adipose mesenchymal stem cells in alginate hydrogel scaffold

open access: yesیافته‌های نوین در علوم زیستی, 2022
Nowadays, researchers have made extensive efforts to find new treatments for nerve damage. Meanwhile, the role of exosomes in cell-cell communication is considered to be a new mechanism. Exosomes can act as suitable differentiating agents.
Mojtaba Cheravi   +3 more
doaj  

Filamin-A is required for the incorporation of tissue factor into cell-derived microvesicles [PDF]

open access: yes, 2013
We previously reported that the incorporation of tissue factor (TF) into cell-derived microvesicles (MVs) is regulated by the phosphorylation of the cytoplasmic domain of TF.
Collier, Mary E. W.   +2 more
core   +1 more source

Production- and Purification-Relevant Properties of Human and Murine Cytomegalovirus

open access: yesViruses, 2021
There is a large unmet need for a prophylactic vaccine against human cytomegalovirus (HCMV) to combat the ubiquitous infection that is ongoing with this pathogen.
Sanda Ravlić   +4 more
doaj   +1 more source

Nitrogen Oxyanion-dependent Dissociation of a Two-component Complex That Regulates Bacterial Nitrate Assimilation [PDF]

open access: yes, 2013
Nitrogen is an essential nutrient for growth and is readily available to microbes in many environments in the form of ammonium and nitrate. Both ions are of environmental significance due to sustained use of inorganic fertilizers on agricultural soils ...
Goldman   +6 more
core   +1 more source

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